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Enhanced Transmission Mode Variable Attenuator, 515nm

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Manfacturer's part number
:

2-EWP-T-0515

Produttore

Altechna

Descrizione
:

Enhanced Transmission Mode Variable Attenuator at 515nm consists of 2 high-performance polarising optics components placed in precision opto-mechanical Holder 5APH79T-1. The variable attenuator/beamsplitter incorporates 2 high-performance Brewster type polarisers, which reflect s-polarised light while transmitting p-polarised light. These two Brewster type polarisers are housed in special design opto-mechanical adapter. The adapter allows to use either round shape either rectangular shape Brewster type polarisers as well. A rotating quartz Phase λ/2 Waveplate is placed in the incident polarised laser beam. The intensity ratio of those two beams may be continuously varied without alteration of other beam parameters by rotating the waveplate. The intensity of either exit beam, or their intensity ratio, can be controlled over a wide dynamic range. P-polarization could be selected for maximum transmission, or high-purity s-polarization could be reflected when maximum attenuation of the transmitted beam takes place.